Compounds > 1-1-diphenyl-2-picrylhydrazyl

1-1-diphenyl-2-picrylhydrazyl and porphyran

1-1-diphenyl-2-picrylhydrazyl has been researched along with porphyran* in 2 studies

Other Studies

2 other study(ies) available for 1-1-diphenyl-2-picrylhydrazyl and porphyran

Article	Year
Enhancement of the Antioxidant and Antimicrobial Activities of Porphyran through Chemical Modification with Tyrosine Derivatives. Molecules (Basel, Switzerland), 2021, May-14, Volume: 26, Issue:10 Topics: Aerobiosis; Anti-Infective Agents; Antioxidants; Benzothiazoles; Biphenyl Compounds; Escherichia coli; Microbial Sensitivity Tests; Oxidation-Reduction; Picrates; Porphyra; Proton Magnetic Resonance Spectroscopy; Sepharose; Spectrophotometry, Ultraviolet; Spectroscopy, Fourier Transform Infrared; Staphylococcus aureus; Sulfonic Acids; Tyrosine	2021
Preparation of the different derivatives of the low-molecular-weight porphyran from Porphyra haitanensis and their antioxidant activities in vitro. International journal of biological macromolecules, 2009, Jul-01, Volume: 45, Issue:1 Porphyran extracted from Porphyra haitanensis is a sulfated polysaccharide, which possesses excellent antioxidant activities. In this study, we prepared one low-molecular-weight porphyran and its sulfated, acetylated, phosphorylated and benzoylated derivatives. Their antioxidant activities were investigated including scavenging effect of superoxide, hydroxyl and 1,1-diphenyl-2-picrylhydrazyl radicals. The results of chemical analysis and FT-IR spectrums showed the modification was successful. And in addition, we found that certain derivative exhibited stronger antioxidant activity than low-molecular-weight porphyran. The benzoylated derivative showed the most excellent antioxidant activity in three assays, so this derivative needs to be attended to. Topics: Antioxidants; Biphenyl Compounds; China; Hydroxyl Radical; Picrates; Porphyra; Sepharose; Spectroscopy, Fourier Transform Infrared; Superoxides	2009

Article

Year

Enhancement of the Antioxidant and Antimicrobial Activities of Porphyran through Chemical Modification with Tyrosine Derivatives.

Molecules (Basel, Switzerland), 2021, May-14, Volume: 26, Issue:10

Topics: Aerobiosis; Anti-Infective Agents; Antioxidants; Benzothiazoles; Biphenyl Compounds; Escherichia coli; Microbial Sensitivity Tests; Oxidation-Reduction; Picrates; Porphyra; Proton Magnetic Resonance Spectroscopy; Sepharose; Spectrophotometry, Ultraviolet; Spectroscopy, Fourier Transform Infrared; Staphylococcus aureus; Sulfonic Acids; Tyrosine

2021

Preparation of the different derivatives of the low-molecular-weight porphyran from Porphyra haitanensis and their antioxidant activities in vitro.

International journal of biological macromolecules, 2009, Jul-01, Volume: 45, Issue:1

Porphyran extracted from Porphyra haitanensis is a sulfated polysaccharide, which possesses excellent antioxidant activities. In this study, we prepared one low-molecular-weight porphyran and its sulfated, acetylated, phosphorylated and benzoylated derivatives. Their antioxidant activities were investigated including scavenging effect of superoxide, hydroxyl and 1,1-diphenyl-2-picrylhydrazyl radicals. The results of chemical analysis and FT-IR spectrums showed the modification was successful. And in addition, we found that certain derivative exhibited stronger antioxidant activity than low-molecular-weight porphyran. The benzoylated derivative showed the most excellent antioxidant activity in three assays, so this derivative needs to be attended to.

Topics: Antioxidants; Biphenyl Compounds; China; Hydroxyl Radical; Picrates; Porphyra; Sepharose; Spectroscopy, Fourier Transform Infrared; Superoxides

2009